| 杨斐,姚永杰,王田祥,李杰,厉帆.双能量CT骨髓分析技术鉴别不同时期肋骨骨折[J].中国医学影像技术,2024,40(12):1847~1850 |
| 双能量CT骨髓分析技术鉴别不同时期肋骨骨折 |
| Dual-energy CT bone marrow analysis technology for distinguishing different stages of rib fracture |
| 投稿时间：2024-07-27 修订日期：2024-12-15 |
| DOI：10.13929/j.issn.1003-3289.2024.12.009 |
| 中文关键词: 肋骨 骨折,骨 体层摄影术,X线计算机 |
| 英文关键词:ribs fractures, bone tomography, X-ray computed |
| 基金项目:山东省医药卫生科技发展计划(202109011115)。 |
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| 中文摘要: |
| 目的 观察双能量CT 骨髓分析技术鉴别不同时期肋骨骨折的价值。方法 回顾性收集60例接受双能量CT扫描的肋骨骨折患者共273支受累肋骨;根据骨折时期将其分为血肿炎症机化期组(n=166)、纤维性骨痂期组(n=35)及硬骨痂-塑形期组(n=72)。分别基于原始CT及虚拟去钙颜色编码图计算骨折标准化CT值增量1及2,比较3组间及两两差异,评估其鉴别不同时期肋骨骨折的价值。结果 3组间标准化CT值增量1及2差异均有统计学意义(P均＜0.05);其中,标准化CT值增量1在纤维性骨痂期组与硬骨痂-塑形期组差异有统计学意义(P＜0.05),标准化CT值增量2在两两组间差异均有统计学意义(P均＜0.05)。以标准化CT值增量1=81.575 HU为截断值鉴别纤维性骨痂期与硬骨痂-塑形期的曲线下面积(AUC)为0.652;分别以标准化CT值增量2=55.700 HU、37.625 HU为截断值鉴别血肿炎症机化期与纤维性骨痂期、纤维性骨痂期与硬骨痂-塑形期肋骨骨折的AUC分别为0.668及0.905。结论 基于双能量CT骨髓分析技术所获标准化CT值增量有助于鉴别不同时期肋骨骨折,尤其纤维性骨痂期与硬骨痂-塑形期。 |
| 英文摘要: |
| Objective To observe the value of dual-energy CT bone marrow analysis technology for distinguishing different stages of rib fracture. Methods Totally 273 ribs with fractures in 60 patients who underwent dual-energy CT scanning were retrospectively enrolled and divided into hematoma inflammation stage group (n=166), fibrous callus stage group (n=35) and bony callus-plastic stage group (n=72) according to the stage of rib fracture. The increment 1 and 2 of standardized CT value were calculated based on original CT images and virtual noncalcium color coded maps, respectively, and then were compared among 3 groups and between each 2 groups, and their values for distinguishing different stages of rib fracture were analyzed. Results Significant differences of increment 1 and 2 of standardized CT value were found among 3 groups (both P＜0.05). Increment 1 of standardized CT values were significantly different between fibrous callus stage group and bony callus-plastic stage group (P＜0.05), while increment 2 of standardized CT values were significantly different between each 2 groups (all P＜0.05). Taken 81.575 HU as the cutoff value, the area under the curve (AUC) of increment 1 of standardized CT value for distinguishing fibrous callus stage and bony callus-plastic stage rib fracture was 0.652. Taken 55.700 and 37.625 HU as the cutoff values, AUC of increment 2 of standardized CT value for distinguishing hematoma inflammation stage and fibrous callus stage rib fracture, and fibrous callus stage and bony callus-plastic stage rib fracture was 0.668 and 0.905, respectively. Conclusion Increment of standardized CT value based on dual-energy CT bone marrow analysis technology was helpful for distinguishing different stages of rib fracture, especially fibrous callus stage and bony callus-plastic stage rib fracture. |
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